/**
 * Copyright 2018 人人开源 http://www.renren.io
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.nbjtjc.safe.job.utils;

import com.nbjtjc.safe.Exception.SafeException;
import com.nbjtjc.safe.bean.Constant;
import com.nbjtjc.safe.job.model.ScheduleJobEntity;
import org.quartz.*;

import java.util.Date;

/**
 * 定时任务工具类
 *
 * @author Mark sunlightcs@gmail.com
 * @since 1.2.0 2016-11-28
 */
public class ScheduleUtils {
    private final static String JOB_NAME = "TASK_";

    /**
     * 获取触发器key
     */
    public static TriggerKey getTriggerKey(Long jobId) {
        return TriggerKey.triggerKey(JOB_NAME + jobId);
    }

    /**
     * 获取jobKey
     */
    public static JobKey getJobKey(Long jobId) {
        return JobKey.jobKey(JOB_NAME + jobId);
    }

    /**
     * 获取表达式触发器
     */
    public static CronTrigger getCronTrigger(Scheduler scheduler, Long jobId) {
        try {
            return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));
        } catch (SchedulerException e) {
            throw new SafeException("获取定时任务CronTrigger出现异常", e);
        }
    }

    /**
     * 获取简单触发器
     */
    public static SimpleTrigger getSimpleTrigger(Scheduler scheduler, Long jobId) {
        try {
            return (SimpleTrigger) scheduler.getTrigger(getTriggerKey(jobId));
        } catch (SchedulerException e) {
            throw new SafeException("获取定时任务CronTrigger出现异常", e);
        }
    }

    /**
     * 创建简单trigger的定时任务
     *
     * @param scheduler
     * @param scheduleJob
     * @param sendDate
     * @param repeatCount  0表示无线次数，其他按重复次数执行
     * @param timeInterval 定时执行的时间间隔
     */
    public static void createScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob
            , Date sendDate, int repeatCount, long timeInterval) {
        try {
            Date date = new Date();
            //构建job信息
            JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(scheduleJob.getJobId())).build();
            SimpleScheduleBuilder simpleScheduleBuilder;
            if (repeatCount > 0) {
                simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                        .withIntervalInSeconds(new Long(timeInterval).intValue())
                        .withMisfireHandlingInstructionNextWithExistingCount()
                        .withRepeatCount(repeatCount);
            } else {
                simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                        .withIntervalInSeconds(new Long(timeInterval).intValue())
                        .withMisfireHandlingInstructionNextWithExistingCount()
                        .repeatForever();
            }
            Trigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(scheduleJob.getJobId()))
                    .withSchedule(simpleScheduleBuilder).startAt(sendDate).build();
            //放入参数，运行时的方法可以获取
            jobDetail.getJobDataMap().put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);
            scheduler.scheduleJob(jobDetail, trigger);
            //暂停任务
            if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            e.printStackTrace();
            throw new SafeException("创建定时任务失败", e);
        }
    }

    /**
     * 创建定时任务
     */
    public static void createScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
        try {
            //构建job信息
            JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(scheduleJob.getJobId())).build();

            //表达式调度构建器
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
                    .withMisfireHandlingInstructionDoNothing();

            //按新的cronExpression表达式构建一个新的trigger
            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(scheduleJob.getJobId()))
                    .withSchedule(scheduleBuilder).build();

            //放入参数，运行时的方法可以获取
            jobDetail.getJobDataMap().put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

            scheduler.scheduleJob(jobDetail, trigger);

            //暂停任务
            if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            throw new SafeException("创建定时任务失败", e);
        }
    }


    /**
     * 更新定时任务
     */
    public static void updateScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
        try {
            TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());

            //表达式调度构建器
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
                    .withMisfireHandlingInstructionDoNothing();

            CronTrigger trigger = getCronTrigger(scheduler, scheduleJob.getJobId());

            //按新的cronExpression表达式重新构建trigger
            trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
            //参数
            trigger.getJobDataMap().put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

            scheduler.rescheduleJob(triggerKey, trigger);

            //暂停任务
            if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }

        } catch (SchedulerException e) {
            throw new SafeException("更新定时任务失败", e);
        }
    }

    /**
     * 更新simpleTrigger的定时任务
     *
     * @param scheduler
     * @param scheduleJob
     */
    public static void updateSimpleScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob
    ) {
        try {
            TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());
            //构建job信息
            SimpleScheduleBuilder simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2)
                    .withRepeatCount(2);
            Trigger trigger = getSimpleTrigger(scheduler, scheduleJob.getJobId()).getTriggerBuilder().withIdentity(triggerKey)
                    .withSchedule(simpleScheduleBuilder).startAt(scheduleJob.getJobTime()).build();
            //放入参数，运行时的方法可以获取
            scheduler.rescheduleJob(triggerKey, trigger);
            //暂停任务
            if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            e.printStackTrace();
            throw new SafeException("更新定时任务失败", e);
        }
    }

    public static void updateSimpleScheduleJob(Scheduler scheduler,ScheduleJobEntity scheduleJob
            , Date sendDate, int repeatCount, long timeInterval){
        try {
            TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());
            //构建job信息
            SimpleScheduleBuilder simpleScheduleBuilder;
            if (repeatCount > 0) {
                simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                        .withIntervalInSeconds(new Long(timeInterval).intValue())
                        .withMisfireHandlingInstructionNextWithRemainingCount()
                        .withRepeatCount(repeatCount);
            } else {
                simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                        .withIntervalInSeconds(new Long(timeInterval).intValue())
                        .withMisfireHandlingInstructionNextWithRemainingCount()
                        .repeatForever();
            }
            Trigger trigger = getSimpleTrigger(scheduler, scheduleJob.getJobId()).getTriggerBuilder().withIdentity(triggerKey)
                    .withSchedule(simpleScheduleBuilder).startAt(sendDate).build();
            //放入参数，运行时的方法可以获取
            scheduler.rescheduleJob(triggerKey, trigger);
            //暂停任务
            if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            e.printStackTrace();
            throw new SafeException("更新定时任务失败", e);
        }
    }
    /**
     * 立即执行任务
     */
    public static void run(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
        try {
            //参数
            JobDataMap dataMap = new JobDataMap();
            dataMap.put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

            scheduler.triggerJob(getJobKey(scheduleJob.getJobId()), dataMap);
        } catch (SchedulerException e) {
            throw new SafeException("立即执行定时任务失败", e);
        }
    }

    /**
     * 暂停任务
     */
    public static void pauseJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.pauseJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            throw new SafeException("暂停定时任务失败", e);
        }
    }

    /**
     * 恢复任务
     */
    public static void resumeJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.resumeJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            throw new SafeException("暂停定时任务失败", e);
        }
    }

    /**
     * 删除定时任务
     */
    public static void deleteScheduleJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.deleteJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            throw new SafeException("删除定时任务失败", e);
        }
    }
}
